We note that handling is invariably impacted with the inclusion of larger diameter wheels so expect at least a little degradation of ride quality with the full size wheel and tyre package. (motoring.com.au)
For one, the 18 - inch wheel and tire package yielded a real degradation in ride quality on our road loop. (mechanics.stackexchange.com)
And, its adaptive suspension really does deliver pleasant ride quality on average roads. (cnet.com)